UNKNOWN CONNECTOR
| Pin | Description | 
|---|---|
| 1 | Audio Out | 
| 2 | Audio In | 
| 3 | Accessory Sense. GND to enable External Mic and Speaker (Analog) | 
| 4 | Audio Signal GND | 
| 5 | Portable handsfree In. | 
| 6 | Music Mute Out, High when phone is used. | 
| 7 | In Flash Memory Voltage and Service Voltage, In 0V=normal,+5V=test, +12V=test+flash | 
| 8 | Logic Out, Status On. Sources over 100mA | 
| 9 | Data Out from Mobile Station. Debug messages appear here at 112KBaud when in debug mode. | 
| 10 | Digital Ground and DC return | 
| 11 | Data in | 
| 12 | DC in for battery charging, DC out for accessory power | 
| Contributor: | Joakim Ögren | 
| Source: | Ericsson 628/788 pinout at Technick.net | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10